I couldn't let Halloween pass without building a "haunted" pedal. I built this overdrive/distortion for Dave Frenson, whom I'd previously made a channel switcher for his Orange Rockerverb 100 amp.

I used madbean's EgoDriver project PCB. Controls are for Drive, Tone, and Volume with a switchable high pass or low pass post filter to tailor the sound of overdrive to the amp/guitar combo. Asymmetrical clipping comes from two 2n7000 MOSFET clips and one 1n34a germanium diode.

We went with a macabre graphic titled "Death from Hell," illustrated by Nicolas le Rouge in 1496. The black graphics tiled over "bone" white paint. I used black knobs and a red LED.